Doffing mechanism for spinning-machines.



T. 0. AKED. DOFFING MECHANISM FOR SPINNING MACHINES. APPLIOATION FILED MAY 29,-1912.

1 090 953 Patented Mar. 24, 1914 I 4 SHEETS-SHEET l.

4: 3 u .u u U LLJJ 5a) IL E w 7 l7 16 T. O. AKED. DOFFING MECHANISM FOR SPINNING MACHINES.

APPLICATION FILED MAY 29, 1912.

Patented Mar. 24, 191

4 SHEETS-8HEET 2.

T. O. AKED. DOFPING MECHANISM FOR SPINNING MACHINES. APPLICATION FILED MAY 29, 1912.

1,090,958. I Patented Mar. 24, 1914 l 4 SHEETS-SHEET 3.

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15a CI 5 T. 0. AKED. I DOPFING MECHANISM FOR SPINNING MACHINES. APPLICATION FILED MAY 29, 1912.

1,090,958.. Ptented Mar. 24, 1914.

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THOMAS OSWALD AKED, OF ST. THOMAS, ONTARIO, CANADA.

IDOFFING MECHANISM FOR SPINNING-MACHINES.

Specification of Letters Patent.

Patented Mar. 21,1914.

" Application filed May 29, 1912. Serial N 0. 700,472.

- To all whom it may concern Be it known that I, THOMAS OSWALD Aura), a subject of the King of Great Britain, and resident of St. Thomas, Province of Ontario, Dominion of. Canada, have invented a new and useful Improvement in Dofiing Mechanism for Spinning-Machines, of which the following description, which has reference to the accompanying sheets of drawings, is a specification.

It relates to improvements in and appertaining to spinning, twisting and like machinery used in the production of yarns, or threads of fibrous substances of the type knownas flier frames, and consists in the new or improved arrangement of the fliers and the construction of other parts in conjunction therewith whereby the process of dofiing the full bobbins and replacing them by empty ones is greatly facilitated.

In the accompanying sheets of drawings which are illustrative of my invention Figure 1 is a front elevation of sufficient of a flier spinning frame to illustrate the application thereto of .my improved parts. Fig. 2 is an end elevation of the parts shown by Fig. 1, and illustrates the several devices in their respective positions when the spinning operation for filling the bobbins with yarn is completed. Fig; 3 is a similar view to Fig. 2 but illustrates the several parts in position as when removing the full bobbins from their spinning position into their position for being doffed. Fig. 4 is also a similar view to Fig. 2 but illustrates the parts in the several positions a when laying hold of the empty bobbins to bring them into position for spinning. Figs. 5 and 6 are drawings in detail of the spindles and parts in connection therewith the peculiarities of which are hereinafter more fully set forth.

Similar letters and figures of reference indicate like part throughout the several views.

A indicates the cross rail upon which th fliers are mounted; B and C are the middle and lower cross rails of the spinning frame.

In carrying my invention into effect I mount the flier 2 in bearings carried by the cross rail A in manner well known, and these fliers 2 are arranged, where necessary, to have ball hearings in contiguity with their whirls, said bearings being of the well known cup and cone construction. Instead of making use of the downwardly extending spindles to form part ofthe fliers as has usually been the case, I now dispense with these spindles and mount upon the lifter plate 3 several fixed or dead spindles 4, which are approximately of the same length as the bobbins 5 upon which the yarn is desired to be wound. These bobbins 5 are mounted upon tubes 6 which take over the dead spindles 4 and are so arranged as to have ball bearings 7 at their upper and lower extremities so come in contact with and revolve upon the spindles 4, thus the friction of the tubes 6 upon said spindles 4 is reduced to a minimum.

The dragon the bobbins 5 is regulated by means of the usual kind of drag washer 8 that said balls 7 may Y (see Fig. 5) being placed beneath the lower removable so that such lifter rail may be entirely detached from the usual lifter rods interchanged with duplicates as hereinafter described.

Arranged inappropriate proximity to the lifter rail 3 are a series of horizontally movable bars 10 provided at their outer ends with supporting clutches 10 said bars 10 being arranged to slide horizontally in the bearings 11 as same may be actuated by their pinions 12 meshing with the rack teeth formed in said bars 10, the number of said bars and their respective pinions being such as to enable them to lay hold of and carry the lifter rail 3 when and as same may be operated by the shaft 13 (which extends lengthwise the spinning frame to carry the pinions 12) as such shaft 13 is rotated in one direction or the other by the operative.

Mounted in front of the lifter rails 3 and upon a series of brackets 14 are aseries of vertically movable supports 15 fixed upon the upper ends of racks 15 which slide through projections forming part of the bracket 14. The series of racks 15 are actuated by a series of pinions 16 mounted upon the cross shaft 17 which extends lengthwise the spinning frame to enable the operator by the rotation of said shaft 17 to raise and lower the supports 15 in manner hereinafter explained.

The support 15 has engaging pins 15 and 15 so that the lifter plates 3 may be moved '9 in order that such lifter rails may be i from being supported by their several rods 9 to be supported by one or other series of pins 15 or 15 as is the supplementary or duplicate lifter rail 3 shown in'the several drawings, said pins 15 and 15 being in such positions as to keep the spindles 4 on the lifter rails 3 and 3 in perfect alinement with the vertical axes of the flier 2 when mounted in the spinning frame to be actuated by the lifter rods 9 and to lie in planes parallel therewith when in the positions in front of said rods 9 as are the plates 3*. Thus said plates 3 and 3 are interchangeable and throughout the length of the spinning frame are made in sections in order to facilitate fitting.

The actions of my improved parts are as follows:--Taking it that the series of bobbins 5 upon the lifter rail 3 have received their full amount of yarn as shown by Fig. 2, and that it is desired to dofl' them and further that another lifter bar 3 provided with its additional set of empty bobbins 5 to replace the full bobbins 5 are in the positions also shown by Fig. 2, all the series of fliers 2 are then turned with their legs in the'same vertical plane. This is done by the operative running his (or her) hand over them in manner well known. The bars with, their supporting clutches 10 will also be in position shown by Fig. 2. The attendant then will actuate the lifter rods 9 causing same to descend and bring with them the bars 3 and the series of bob- 35 bins 5 until said bars 3 are brou ht to rest upon the clutches 10 as shown y Fig. 3, the lifter rods 9 at such time being permitted to descend lower so as to be entirely clear of said bars 3. The attendant will then rotate the shaft 13 so that by its pinions 12 the bars 10 will be caused to move outwardly and bring the bars 3 over the top of the pins 15*. -While these bars 3 are in this position the attendant will actuate the shaft 17 and cause the pinions 16 to lift the racks 15 so that the pins 15 will be raised into the openings in the rails 3, thus said rails 3 will be raised into the position slightly higher than that shown by Fig. 4:: to enable the raising of these bobbins and lifter bars 3, to this extreme position the attendant will have rotated the shaft 13 to cause the bars 10 to be withdrawn out of the path of motion of the bars 3 which are 55 required to be raised higher than these clamps 10*. After the bars 3 have thus been raised above the clamps 10 these latter are brought underneath the said bars 3 which are now caused to descend to engage 60 with the clamps 10 as shown by Fig. 4c. The

attendant will then permit the supports 15 to descend sufficiently to bring their pins 15 clear of the bars 3 on which said attendant will again move the shaft 13 to 65 withdraw the clamps l0 from their extended positions in order to bring the bobbins 5 in alinement with the axes of the fliers 2: the lifter rods 9 will then be raised to engage with said bars 3 and the shaft 17 will be. moved to cause the supports 15 to be lowered slightly so that the fliers 2 may wind a few coils of yarn around the empty bobbins 5* after which the supports 15 are again slightly loweredin order to bring the series of threads which extend from the full bobbins 5 now carried by the pins 15 to the empty bobbins 5 which are within the fliers, after which the threads are out between the bobbins. The full bobbins thus retained by the supports 15 may be then removed by the attendant without interfering with the spinning operations in manner well understood.

Such being the nature and object of my invention What I claim is 1. In spinning apparatus of thecharacter described, duplicate detachable lifter rails each adapted to support a series of spindles, and means for moving and adjusting said lifter rails.

2. In spinning apparatus of the character described, duplicate lifter rails each adapted to carry a series of bobbins, adjustable supporting devices adapted to receive either of the detachable lifter rails and their bobbins, and means for actuating said supporting devices.

3. In spinning apparatus, doffing mechanism comprising duplicate detachable interchangeable plates to support the bobbins, and means for shifting either plate and the bobbins carried thereby to and from position for spinning.

4. In spinning apparatus, do-fiing mechanism comprising duplicate detachable interchangeable plates to support the bobbins, and manually controlled mechanism for substituting one plate for another in position for spinning.

5. In spinning apparatus having fliers, dotting mechanism comprising detachable interchangeable plates to support the bobbins, said fliers being mounted independently of the spindles carrying the bobbins, and means for shifting either plate and the bobbins carried thereby to and from position for spinning.

6. In spinning apparatus, rotary fliers mounted in bearings to rotate independently of their spindles, non-rotatable spindles arranged to act in conjunction with said fliers, lifter rails upon which said spindles are mounted, means whereby said lifter rails may be made to rise and fall to carry the spindles in alinement with said fliers, and devices whereby said lifter rails may be removed from the means which transmit motio to them, substantially as herein specifie 7. In spinning apparatus, rotary fliers a, spindles in alinement with said fliers, de-

vices for laying hold of said lifter rails to carry them transversely from their positions in alinement with said fliers into other positions out of alinement therewith, and means for receiving the said lifter rails when so i moved, substantially as herein specified.

8. In spinning apparatus, rotary fliers mounted in bearings to rotate independently of their spindles, non-rotatable spindles arraged to act in conjunction with said fliers, lifter rails upon which said spindles are mounted, means whereby said lifter rails may be made to rise and fall to carry the spindles in alinement with saidfliers, and devices carried on racks actuated by pinions for laying hold of said lifter rails and means for receiving said lifter rails when so moved horizontally, said means being arranged so that they may be moved vertically to carry said lifter rails from one position to another. substantially as herein specified.

9. In spinning apparatus, rotary fliers mounted in bearings to rotate independently of their spindles, non-rotatable spindles arranged to act in conjunction with said fliers,

lifter rails upon which said spindles are mounted, means whereby said lifter rails may be made to rise and fall to carry the spindles in alinement with said fliers, de-

vices for laying hold of said lifter rails means for moving said devices horizontally, adjustable supporting devices for receiving the lifter rails and the spindles and means whereby said adjustable devices may be ac tuated, substantially as herein specified.

THOMAS OSWALD AKED. Witnesses:

EDNA CAMPBELL, RUTH RYAN. 

